Sole-channeling and flap-turning machine



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H T CROSBY SOLE OHANNELING AND FLAP TURNING MACHINE Patented Apr 26,1898 ZoyMOZ (No Model.)

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HANFORD T. CROSBY, OF BOSTON, MASSACHUSETTS.

SOLE-CHANNELING AND FLAP-TURNING MACHENE.

SPECIFICATION forming part of Letters Patent No. 602,980, dated April26, 1898.

Application filed July 3, 1897. Serial No. 643,359. (No model.)

To all whom it may concern:

Be it known that 1, Hanson]; T. Cnosnv, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Sole-Channeling and Flap-Turning Machines, of which thefollowing, taken in connection with the accompanying drawings, is aspecification.

My invention relates to sole-channelin g and flap-turning maehines,andis an improvement upon the invention described in another application ofmine filed May 24, 1897, and serially numbered 637,844; and it consistsin certain novel features of construction, arrangement, and combinationof parts,which will be readily understood by reference to thedescription of the accompanying drawings and to the claims heretoappended and in which my invention is clearly pointed out.

Figure l of the drawings is a side elevation of a machine embodying myinvention. Fig. 2 is a front elevation of the same. Fig. 8 is a partialplan of the front portion of the machine with the feed-shaft andfeed-wheel removed. Figs. 4, 5 and 6 are respectively a plan, a sideelevation, and a front elevation, of the channel-cutting knife, theflap-turning blade or hammer, and the section of the vibrating lever towhich they are secured. Fig. 7 is a perspective view of thechannelcutting knife removed from its carrier. Figs. 8 and 9 arerespectively a side elevation and an inverted plan of the flap-turningblade or hammer. Fig. 10 is a front elevation of the channel-cutter,flap-turner, and the lever for carrying the same 3 and Figs. 11 and 12are respectively a plan and a transverse section of a piece of leatherillustrating a channel having its flap turned as performed by myinvention.

In the drawings, A is the frame of the head of the machine.

B is the drivin -shaft, C the driving-pulley, and D theknife-lever-operating crankpiu, said shaft B having formed thereon orsecured thereto a worm (not shown) which engages with and imparts motionto the wormwheel F, firmly secured upon the feed-shaft G, mounted inbearings in the frame A. and having secured upon its front end the feeddisk H and gage-r0111 and at its rear end the non-revoluble yoke orcollar J, by which the lever K, rod L, and a treadle. (Not shown.) Saidshaft G may be moved endwise in its bearings against the tension of thespring M.

N is a vertically-movable slide,'upon which are mounted the gage-r011 O,the vibrating lever P, the stationary cutter a, and the fixedpresser-guide Z), said slide having a spring 0 attached thereto, thetension of which tends to move said slide downward.

Q is a cam-plate mounted upon a pin set in the frame A, about which itis movable in one direction by the rod (1 and a treadle (not shown) andin the opposite direction by the spring B, said cam engaging a pin 6,set in said slide N and operating to raise said slide when the rod (1 ismoved downward.

The upward and downward movements of the slide N are limited by thestops f and f, respectively.

So far the machine is constructed and operates substantially asdescribed in my beforecited application.

In my present invention instead of making the knifecarrying lever in onepiece and pivoting the knife to its extreme front end, as in my formerinvention, 1 make said lever in two parts P and P, pivoted together atg, said part P being adjustable about said pivot to vary the angle ofthe channel-cutting knife h,by means of the clamping-screw i, the shank.of which passes through a slot t" in the rear end of the part P and isscrewed into the part P, as shown. The: forward end of the part P hasformed in its side a slightly curved rectangular slot j to receive theknife 72, which is clamped therein by the cap it, formed in one piecewith the flap-turning blade or hammer 71;, said cap having a simi- 9olarly-curved rectangular slot j formed therein to receive one edge ofsaid knife and secured to the part P by the clamping-screw Z and thesteady-pin Z. By this construction the knife It may be formed on the endof a slightly-curved rectangular bar, as shown in Fig. 7, and it maybeadjusted endwise in its bearing as it is worn up by sharpening, and itmay also be adjusted to enter the sole at difierent angles by means ofthe clampingzoo screw 7 as before described.

The flapturning blade 70 is secured to the part P of the lever P, asabove described, with its inner edge coinciding with the contiguous edgeof the knife 71 and in contact therewith, as shown in Fig. 6. Said bladehas its operating end curved, so that while the portion 2 next to theknife his somewhat shorter than said knife, or, in other words, itslower end is above the lower end of the knife, its opposite edge portion3 has its lower end considerably below the level of the lower end ofsaid knife, as shown in Fig. 6. The curved lower end of said blade 7chas formed therein near the cutting-knife h a shallow curved notch 4, asshown. The blade 70 also has its front face curved, as shown in i Fig.9, so that while the part 2 of said blade enters the out made by theknife h the curved notch at engages the edge of the flap as said bladeis reciprocated and turns said edge outward, and the curved portions 3and 5 complete the turn-in of the flap and by the rapid impact thereoffirmly sets the flap in its turned position, the parts 3 and 5 beingoutside of said flap. By this construction and operation of thechannel-cutting and flapturning devices moving in a direction at rightangles to the line of feed of the material being acted upon a perfectchannel is produced and fully prepared to receive the sewing at oneoperation, which is a very material advantage over cutting the channelat one operation and turning or opening it by a separate and distinctoperation, as is now generally the practice.

What I claim as new, and desire to secure by Letters Patent of theUnited States, is-

1. In a channel-cutting machine the combination with a feeding mechanismof a vibratory lever made in two parts connected together and adjustableone upon the other by means of a pivot-pin, and a clamping-screw thelatter passing'through a slot in one of said parts concentric with theaxis of said pivot-pin, and set in a fixed position in the other of saidparts; a channel-cutting knife clamped to the movable end of said leverand adjustable in the direction of the length of said knife; and meansfor vibrating said lever in a vertical plane at right angles to the lineof feed of the material.

2. In a channel-cutting and flap-turning machine the combination with afeeding mechanism and a fixed cutter arranged to cut a shallow incisionin the material as it is fed past it, of a vibrating cutter moving in avertical plane at rightangles to the line of feed and adapted to out asuccession of incisions in the material at a slight angle to the face ofmaterial; and a flap-turning blade in close proximity to and movablewith said vibrating cutter.

3. In a sole channeling machine the combination with a feeding mechanismand a fixed cutter arranged to cut a shallow incision in the face of thematerial, as it is fed past it, of the vibratory lever P P made in twoparts pivoted together and adjustable one upon the other; thecutting-blade 7?, and the turner 7t 7t secured to the lever P P andarranged relative to each other as set forth; and means for vibratingsaid lever in a vertical plane at right angles to the line of feed ofthe material to be acted upon.

4. In a sole-channeling machine the combination of the rotary feed-diskH; the revoluble gage-rolls I and O; the fixed pressure gage I); thefixed cutter a; a vibratory lever movable in a vertical plane at rightangles to the line of feed; the cutter h and the flapturning blade 7:,both carried by said lever; and means for imparting a short and rapidvibration to said lever substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, on this 30th day of June, A. D.1897.

HANFORD T. CROSBY.

Witnesses:

N. C. LOMBARD, RoBT. L. GILMAN.

